ldx #0 lda #0 loop: adc 1 sta $200,x sta $300,x sta $400,x sta $500,x inx cpx #$ff bne loop
ldy #0 loopx: iny tya ldx #0 loop: adc 1 sta $200,x sta $300,x sta $400,x sta $500,x inx cpx #$ff bne loop jmp loopx
.